Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received November 28, 2024
Accepted January 11, 2025
Available online June 25, 2025
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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The Role of Stack Pressure in Modulating Electrochemical Behavior of All-Solid-State Lithium–Sulfur Batteries
https://doi.org/10.1007/s11814-025-00394-4
Abstract
All-solid-state lithium–sulfur batteries (ASSLSBs) represent a crucial frontier in energy storage research, promising higher
energy densities and improved safety over traditional lithium-ion systems. Despite their advantages, ASSLSBs face signifi -
cant challenges, particularly in addressing interfacial instability and mechanical issues arising from the insulating nature and
volume expansion of sulfur cathodes. Since the interfaces of all-solid-state batteries cannot accommodate the large volume
changes, interfacial contact issues become increasingly pronounced in systems utilizing S 8 conversion chemistry. Therefore,
applying stack pressure during cell operation is considered a critical factor for optimizing the performance and cycle life of
ASSLSB systems. In this study, we systematically investigated the impact of stack pressure on the electrochemical behavior
of ASSLSBs under four diff erent stack pressures. Electrochemical cycling results showed a marked diff erence in capacity
retention—74% retention after 100 cycles at high pressure, while only 6% capacity retention was observed at low pressure.
This pressure-dependent cycling performance was analyzed from two perspectives: the Li + /e
